The answer is c because five plus two is seven and take away that is 4
Answer:
V=1.18 L
Explanation:
Alternative solution:
Calculate how many moles
2.34
g
C
O
2
is
2.34
g
⋅
1
m
o
l
44
g
C
O
2
=
0.053
m
o
l
Simple mole ratios tell us that
1
mol of any gas at STP is
22.4
L
, but since we only have
0.053
m
o
l
, we times
22.4
L
m
o
l
by
0.053
m
o
l
.
22.4
L
m
o
l
⋅
0.053
m
o
l
=
1.18
L
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Answer:
m = 7.39 g.
Explanation:
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In this case, since the molar mass of iron (III) phosphate is 150.82 g/mol based on its molecular formula (FePO₄), we can compute the mass in grams of 0.0490 moles of this compound by setting up the following dimensional analysis:
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Answer:
Ratio is 1:1 ; they have same number of molecules.
Explanation:
One mole of any compound have same number of molecules, irrespective of their chemistry and composition, i.e. 6.022x10^23 . This number is known as Avogadro's Number.
So the beaker with one mole of water contains = 6.022x10^23 molecules ;
and beaker with one mole of Hydrogen chloride = 6.022x10^23 molecules.
The comparative ratio is 1:1.
Ring of fire happens mostly as a result of plate tectonics.
Now if water is ever channeled out of the pacific ocean, we would have a number of deep ocean trenches. These trenches are side by side with volcanic arcs that are forward on the path of the ring of fire.
These volcanic arc is ring of fire and it surrounds the tectonic plate. The volcanic arc is what produces islands and mountain ranges.
In conclusion, ring of fire are due to plate tectonics, Arcs along the ring of fire after water is drained from the pacific forms mountain ranges.
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